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Finding the Fourth Proportional to 18,667, 25,760.91 and 10,283.50

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Solution

The fourth proportional to 18,667, 25,760.91 and 10,283.50 is: 14,191.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667 : 25,760.91 = 10,283.50 : x
  2. Step 2: Convert to fraction form
    18,667/25,760.91 = 10,283.50/x
  3. Step 3: Cross multiply
    18,667x = 25,760.91 × 10,283.50
  4. Step 4: Simplify right side
    18,667x = 264,912,317.99
  5. Step 5: Solve for x
    x = 264,912,317.99/18,667
  6. Step 6: Final answer
    x = 14,191.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.